It depends on how much time and effort you want to put into building them I suppose. The ones I'm currently building, I wet formed leather for the soles and will be building ankle height boots with gaiters for the rest as I feel it's more accurate to the feel of the series and the various time periods they've pulled their inspiration from.

If you don't want to go the route of fulling making them in that manner, you can always buy a base boot and build up the toe to curl by other methods, paper mache would be my suggestion and then you'd cover the toes with material that best matches the base shoe.